4 page summary by the National Science and Technology Council, May 2008. Over the past several years, our understanding of global environmental change and our ability to estimate its future effects has improved significantly. In order to summarize the key conclusions of this research, the U.S. Climate Change Science Program (CCSP) has undertaken a national scale “Scientific Assessment of the Effects of Global Change on the United States.”The conclusions in this assessment build on the vast body of observations, modeling, decision-support, and other types of activities conducted under the auspices of CCSP. It draws on findings from previous assessments of the science, including reports and products by the Intergovernmental Panel on Climate Change (IPCC), CCSP, and others. Together with CCSP’s 21 Synthesis and Assessment Products, this is arguably the most comprehensive assessment to date of the effects of global change, and especially climate, on the United States. This fact sheet summarizes the key findings of the Assessment.

By the National Science and Technology Council, May 2008. The report summarizes and integrates recent findings from several Synthesis and Assessment Products of the U.S. Climate Change Program as well as from assessments of the Intergovernmental Panel on Climate Change.

Published May 2008, this is the most extensive examination of the impacts of climate change on important U.S. ecosystems undertaken to date. SAP 4.3 is one of a series of 21 Synthesis and Assessment Products being produced under the auspices of the U.S. Climate Change Science Program (CCSP)

Researchers in Wyoming report development of a low-cost carbon filter that can remove 90 percent of carbon dioxide gas from the smokestacks of electric power plants that burn coal and other fossil fuels. Their study is scheduled for the May 21, 2008, issue of ACS’ monthly journal, Industrial & Engineering Chemistry Research.

The climate is changing, and so are aspects of the world's physical and biological systems. It is no easy matter to link cause and effect — the latest attack on the problem brings the power of meta-analysis to bear.

On geological timescales, carbon dioxide enters the atmosphere through volcanism and organic matter oxidation and is removed through mineral weathering and carbonate burial. An analysis of ice-core CO2 records and marine carbonate chemistry indicates a tight coupling between these processes during the past 610,000 years, which suggests that a weathering feedback driven by atmospheric CO2 leads to a mass balance between CO2 sources and sinks on long timescales.